Electrical signaling and indicating means



M. HAsELToN ET AL 1,969,369

Original Filed Feb. 23, 1928 2 Sheets-Sheet 1 oR y Hamlin/2f e SIE/malto@ @An/ wu( Y ATTORNEYS ELECTRICAL SIGNALING AND INDICATING MEANS .NSQQG Mokum #um i l M. L. HAsELToN ET AL 1,969,369

ELECTRICAL SIGNALING AND INDICATING MEANS Original Filed Feb. 25, 1928 2 Sheets-Sheet 2 L:gl y \`:)in.

INVENTOR Aug. 7, 1934.

Patented ug. '1, 1934 UNITED STAv eis @eEurope-ICE Original application February 23, '1928,' SeriaIrNo.

v 256,160, now Patent No. 1,890,878, dated December13,1932. Divided and thisv application February 5,1930, Serial No. 25,992 f This invention relates to electrical signaling and indicating means and more particularly to signaling apparatus and methods such as de-v scribed in our application Ser. No. 256,160filed *Feb 23, 1928, Patent 1,890,878 dated Dec. 13,- 1932, of which this is a division.

While not limited thereto, the invention is particularly adaptable to the transmissionfand I posting of varying quotations or prices of aV multitude of items such as stocks, bonds or-commodities. Y

The transmission of the quotations may be con-A trolled from central points, such as stock ex- ,m changes, and arrangements are provided whereby a large number of brokers` may be simultaneously provided with quotations service -for as many of the stocks or other'items as are desired or of particular interest at eachbrokers oice lor other establishment having suitable re- ---ceiving apparatus. Y f 'i The objects of our invention include the provision of apparatus of the above indicated'class which will be applicable with a wide degre'e'of flexibility to various operating conditionsand which will be rapid, accurate and dependable in operation. 1 One ci the objects of thisinventionis :the provision of an indicator unit which .maybe A l operated forwardly or reversely directly from its Y` old setting to indicate a new quotation 'and'which permits of the use of a small number of Aindi-v cator actuating circuits. A l, :f Further and more specific objects, features-and advantages will more clearly appeary from `fthe '-'v following description taken in ,connection with the accompanying drawings and claim-.i-

`The invention consists in thefnovel 'signaling methods, features, circuit arrangements* and combinations of circuits and parts as hereinafterl described, but by way of example only, as beingy illustrative of a certain preferred embodiment of` the invention.v

In the drawings,V Fig. I shows afgeneral wirV^ ing diagram cian electrical indicatingy appa' Fig. 2 is a horizontal sectional View through an indicating unit; i

Fig. 3 is a transverse sectional view taken" on the line V3--3 of Fig. 2V; and

Figqi indicates groups vof current variations transmitted over apair' of lli-nesior theV control' of the system disclosed. l f v ws Certain phases of this invention areapplicable to the apparatus andV signaling methods disclosed in the copending 'applicationsof' Merton L; Haselt'on,` Ser. No. 244,873,1filed January 6, 1928, Patent '11,890,876 datedDec. 13,1932, and Ser. No. 248,069, filed January 20, 1928, and also certain phases of the inventions of said Haselton applications are applicable to the signaling ap paratus disclosed herein. Y A Where the information to'be posted comprises stock quotations or similar items, it is desirable tov make the information available, generallyV speaking,v in the same arrangement 'as with the conventional types of manually attended stock boards vor Hblackboards as heretoforeused. The apparatus in the particular form hereinafter described i`s`partic'ularly adapted to that purpose, although according to this invention the post'- ing',A ofV quotations may be accomplished with much greater rapidity 'and accuracy than withv stock' boards which are manually attended, andl iny addition a substantial saving of labor is made possible since the equipment for numerousbro#4 kers may be operated from a central point by a', single operatolor group of operators. J yOur vinvention 'according to the embodimen herein disclosed may comprise indicator unitsvin which the -four digit indicating dials or drums maybe geared together and actuatedin unison byal single magnet or set of magnets. With this form of'indi'cator, instead oi restoring the 'dials to zero or toa normal position prior to the set\v ting up of 'anew quotation, the indicator may be turned up"A or vdown an amount' correspending to ltheprice of quotation change, that is,"an' amount equalling ythedifference between the oldand new quotations." As hereinafter explained, one electromagnet 'may be used to "move the dialsforward for `a. price advance andanother electro-m'agnet 'may vbeused to turn theY dials backward in the event that a lower-'price is-to be'fquoted.-YYA unitary indicator assembly is-thereiore vprovided for eac'hof thev four quota-f tions, such" as lOpen, High",1Low-and Last", for each item.v VOne typeof circuit .arrangement Wlfiich'rnay'v beutilized'to control such indicators is shown inl-Fig. l? `:The operation of the circuits' shown ii-ifflig".vr 1 is-similar to that of' another form 'described' in the parent' application;

jv The transmission channels compriseV lines 20 and 201. 1Positive impulsesl overline 20 are al# locatedbythe polarized relay 2l-to'tl1e thousands selector to` set the'thousands selector in accordance lwith the thousands digit, designating the' indicator to beselectedjand' then to'establish an' impulsing" eircuitov'er' line 'B1 responsive to posi"-' tive? impulses" over line 20;* 'A negative impulse over line-'20' is'allocatedbyvthepolarized relay- 20 will `cause impulses on line Brand bus liney 43 to `setta selectedVv indicator ahead by :reasony to the hundreds selector and' after selection has been performed in accordance with the hundreds digit of the designating numberr an `impulsing circuitfis established over line .B2 responsive to negative impulses over line 20. Similarly positive and negative impulses over line 201 cause selecting operations by the tens and units selectors, and cause impulsing` circuits to be established over lines B3 and B4 responsive respectively to positive and negative impulses over line 201.v

The thousands and hundreds'selectors cooper.-v

ate to connect ground and batteryto one.1of the lines 22 extending to a vertical row ofmjacks in the panel board 23 while the tens and units se ,selector mechanism includes a magnet, which lectors cooperate to ground a `horizontal row of jacks by grounding one of the lines-24," Double plugs in the panel board yat the intersections ofV lines 22 and 24 connect the selected activated and grounded lines 22 and 24 with the rterminals of one of a large number of magnets 25 each4 `V of which operates amulti-contact relay to connect all Vof the indicators in the corresponding group to the open, high,llow and last bus lines as later described.

' "After the group selection has been effected and ergization of magnet 34estab1ishes a self-closing circuit from ground, battery, its coil, break switch 32, its make switch 35 to ground.

VEnergization ofv magnet 34 also connects ground over its make switch 436 to coil of relay 37 to battery and ground to disconnect all of the lines B1, B2, B3 and B4 from the open, high., low and last magnets 30, 38, 39 and 40, to prevent energization of any of these magnets by a subsequent impulse over any of these lines, until relay 37 is released afteroperation of the indicators. v

Energization of magnet 34 also through its make switch 41 connects ground to coil of .open bus line selecting magnet -42 to battery and ground. Energization of magnet 42 extends lines B2 and`B3 respectively to the forward actuating bus line 43v and rearward actuating bus line 44 wherebygsubsequent negative impulses over line ofthegenergization of magnets 83 and whereby d negative .impulsesbver line 201 will cause im- As single impulses over the lines B1, B2, B3

and B4 respectively .select thev open, last f and low indicators and as itis possible to send an impulse l over- B1k or B2 to select the openor "last indicator and at the `same time send g an impulse over-B3 orY B4 to select the high or flow? indicator, it is obvious `that ahigh degree of iiexibility ofi selection is provided for. InY addition to individual selectionpf the open, high, low'and1last,indicators, it is pos: 'L sible to simultaneously select the open and '.price. ,consecutive prices `of ,aA large number of stocks, especially in the cases of stocks that are quite 'active and in which the price variations are small,

'33 to remove the ground from the magnet 34 and high, the open and low, the last and high and the last and low indicators in pairs. .The high and last and the 'low and last..ranges maybe selectedland operated in y combination'whenever the next to the last quotation is the same as the previous high or low It has been found upon examination of that the new high price cr the new low price may in a great many instances be set-up at the same 'time that the last price is set-up.

'*As' disclosed in the .parent application, each Whenj-released by a prolonged impulse of the proper` polarityjand on the appropriate wire 20 orl 20gro`unds a release circuit to release all of the selectors and to energize the release magnet any of the corresponding magnets, which through release of theirA makeswitches remove,y the grounds from the energized bus selecting magnets 42, 45, 46 and 47,.thereby disconnect` ing the bus lines such as at 43 and 44Afrom the lines B2 and B3 and connecting the open f high, low and last magnets 80 .38, 3 9 and 40 to the lines B1, B3 and B4 and B2 respectively forasubsequent indicator selection. I

As in this system the indicators are actuated. by impulses over lines B2 and B3 which are "l caused respectively by negative, impulses over line 20 and positive impulses overline 20', lit is obvious that the prolonged impulse to effect rer-- lease of the selectors and thevselecting magnets in Fig. 1 may be a positive impulse over line 20 or a negativeimpulse over a line 20', neither of which-will cause resultant impulses on the lines B2 and B3 and ywill therefore not affect thein-A dicators. ,v 115 Av series of impulses for effecting selection of a stock,.f0r selecting an indicator for indicating the "0pen, vhigh, .low or last price. of the stock, and for actuatingthe selected indicator forwardly is diagrammatically:indicated in Fig.` 4. The impulses are transmitted in the order. l from left-to right. l

With` the particular example shown in Fig. 4,. the iirst series of positive and negative impulses over lines 2.0 and 20 are allocatedto thejproper 125 selectors to cause energization o f the multi-conf 1ftact relay 25 of stock number 5234. yThe subsequent Aspace allows time forr operation ofY the rselector relays and for associating lines-B1 and- B2 to line 20and lines B3 and B42to line 20'. f- 1 130 'Ihe next impulse on line 20 shown as anegag. '-l tiveimpulse causes an impulse on line B2 to energizeA the *flast magnet 40 and to connect the last buslines 43 and 44 to lines B2 and B3, and disconnect all ofthe magnets 30, 38, 39 and 40 fromfthelinesBl, B2,- B3 andvB4.. .I 4; The next series of negative impulses over;line 20 cause impulses over line B2and line .43 Atoy turn `the-selected indicator ahead. VIf 4the infdicator were to be Aturned back, then positive 14() impulses wouldbe sent over line 20 as `indicated' "--f by dotted lines, resulting in impulses over. line B3 and linerf44. .Y -l 1 The prolonged impulse fortheV` release ofthe selectors andthe busline-selecting magnets may be a positive impulseon line20 as shown ory a negative impulse on line 20f as indicated .by dotted lines. Y, l

One form of indicator well adaptedtothiscircuit, arrangement is ageared dial.'indicator` 150 tri shown in Figs. 2 and 3. The use of this type of indicator is particularly desirable in some instances, since but two electromagnets are required, operated over three wires for each group of four digit wheels for indicating one quotation. The use of a correspondingly small number of ratchet mechanisms for driving the digit indicating drums is accordingly also made possible.

Furthermore, when such indicators are made reversible, it is unnecessary to transmit the entire new quotation each time that a price change takes place. That is, only the digits need be changed which are different from the corresponding digits in the previous quotation. The necessity for restoring the indicators to zero is accordingly also obviated, which in some instances may be advantageous.

As shown in Fig. 2, the indicator group may consist of the four digit drums or dials as at 51, 52, 53 and 54 carried upon hubs as at 55, which in turn are rotatably mounted upon a shaft 56. These four dials correspond respectively to the fractions, units, tens and hundreds digits of the quotation to be posted.

The dials consist preferably of light sheet material, such as aluminum, in order that the inertia may be substantially minimized. The fractions dial 51 may be fixed directly to the shaft 56 to rotate therewith, while the other dials are free to rotate with respect to the shaft. Dials 52, 53 and 544 may, however, be operatively geared to the fractions dial 51 by carrier pinions as at 57, 58 and 59 cooperating with teeth as at 60 formed in the edges of the dials 52, 53 and 54 respectively, These pinions may be rotatably mounted on a shaft 61, and together with the teeth on the dials constitute the well known intermittent register gear train commonly known as the Geneva movement.

Shaft 61 may be rotatably mounted within an end plate 62 and a strut 63. Shaft 56 may be also mounted in the end plate 62 at one end, and in a division plate 64 at its other end. It will be understood that a fractional part of the circumference of the dials sufficient to exhibit one character is made visible through apertures as at 65 in a face plate 66 provided as a part of the indicator container (see Fig. 3).

In order to provide means for rotating the shaft 56, together with dial 51, in either direction and for restraining the movement thereof when the desired step-by-step rotational movement has been completed, two oppositely directed ratchets as at 67 and 68 may be provided upon the outer end of the shaft 56 (see Fig. 3). The ratchet 67 is arranged to cooperate with a spring pressed pawl 70 having a spring 71, to turn the digit wheels in a direction to exhibit higher numbers. The pawl 70 may be mounted upon a thrust bar as at 72 so arranged that upon the forward stroke of the bar 72, the pawl 70 moves away on an adjustable stop pin as at 73 and is brought into engagement with one of the teeth as at 74 on the ratchet 67. Continued forward movement of the bar 72 thereupon causes the ratchet to be rotated together with the shaft 56 against the pressure of a jockey roller 75 which may be pressed against a cam as at 69 by its supporting spring 76. When the shaft 56 is rotated through an angle equivalent to one step (T1-. of a complete revolution to exhibit the next character) ,the forward movement of the pawl 70 is arrested by a front stop pin 77, causing the pawl to bind in the ratchet 67.

A similar pawl and controlling mechanism is arrangedto cooperate with the ratchet 68 to move the shaft 56 step-by-step in the opposite direction. Similar parts of the two ratchet and pawl mechanisms are identified with the same reference numerals accompanied by prime marks in the case of the mechanism cooperating with ratchet 68. The pawl 70 is illustrated in the position which it assumes at the completion of its forward movement. y

The thrust bar 72 may be pivotedto an armature 78 as by a pivoting pin 79, the armature in turn being pivoted to the top frame 80 as at 81. The armature is normally urged away from a pole 82 of a magnet 83 by a spring 84. The armature thus retained, acts through the thrust bar to keep the bar normally in engagement with a stop pin 85. The thrust bar 72' is similarly controlled. Accordingly the pawls 70 and 70' are normally held out of contact with their respective ratchets.

It will be evident that each time the magnets 83 or 83 are energized, the shaft 56 will be advanced or turned back through an angle'equivalent to one step and it will be observed that the mechanism for advancing the shaft is operative independently of the mechanism for effecting the reverse movement and accordingly, the two movements will not interfere. Y

Suitable terminals as at 86, 87 and 88 may be provided for the electro-magnet lead wires 89; the terminal 88 being connected as a common return for both pairs of electro-magnets, while the other two terminals provide the necessary two operating circuits. These terminals are preferably of a quick detachable type to facilitate removal of the indicator units for inspection, repair or replacement purposes, etc.

While the invention has been described with respect to certain particular preferred examples which give satisfactory results, it will be understood by those skilled inthe art after understanding the invention, that various changes and modications may be made without departing from the spirit and scope of the invention and it is intended therefore in the appended claim toI cover all such changes and modifications.

What is claimed as new and desired to be secured by Letters Patent of the United States is:

In an electrical indicating apparatus comprising a large number of groups of indicators in which group selection is effected by positive and negative impulses on two transmission lines, the combination of groups of indicator units comprising indicator elements geared together and actuable forwardly and reversely by impulses over single forward and reverse bus lines, means responsive to impulses over said transmission lines for connecting all of the indicators of any desired group to said bus lines, a plurality of impulsing channels over which are transmitted impulses responsive to impulses over said transmission lines, and means controlled by impulses over said impulsing channels for connecting one or more pairs of indicator unit forward and reverse lines to two of said impulsing channels, whereby impulses over one of said two channels will actuate the selected indicator or indicators forwardly and impulses over the other of said channels will actuate said selected indicator or indicators reversely.

MERTON L. HASELTON, PAGE S. HASELTON. 

